971 in Roman Numerals

971

C (subtracted)MLXXI

nine hundred seventy-one

How CMLXXI is formed

PlaceValueSymbols
Hundreds900C (subtracted)M
Tens70LXX
Units1I
Total971CMLXXI

CMLXXI is written one place at a time, from the largest to the smallest: CM (900) + LXX (70) + I (1) = 971.

CM is the only subtraction: the C before the M takes away 100, so CM = 900.

Common mistakes

Wrong: DCCCCLXXI

Why isn't 971 written as DCCCCLXXI?

A symbol can't be repeated four times in a row. 900 is CM (1000 − 100), not DCCCC, so 971 is CMLXXI.

Numbers near 971

Properties of 971

Prime factors
971
Divisors
1, 971
Even or odd
Odd
Prime number
Yes
Letters in CMLXXI
6

971 is a prime number: it can only be divided by 1 and by itself.

971,000 in Roman numerals

With a bar over it (vinculum), C̅M̅L̅X̅X̅I̅ means 971 × 1,000 = 971,000. How Roman numerals work

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